Electric receptacle.



No. 832,718. lATENTED 00119, 1906.

`G. A. CHASE. ELBGTRG RBGBPTAGLE.

APPLICATION FILED APR. 29.1905.

' clear and exact description. of the invention .To .all whom it mayconcern.:

- Wardly-exten CHARLES A. CHASE, OF CHICAGO, .lLL'lilizl.`

ELECTRIC RECEPTACLE'.

Specification of Lettere Iatont.

atentec Get. 9,1906

Application ned Apre 29,1905, seal iin. 258,000.

Be it known that I, CHARLES A. CHASE, a citizen of theUnited- States,residing at Chicago, in the-county of Cook and State of Illi noie, haveiiiventedcertain new and useful Improvements in Electric Receptacles'and I do hereby declarethe following to be a full,

such as will enable l which it appertainsto make and use the same.

M invention relates to receptacles for incan escent electric lamps; andit consists in a new construction of receptacles particularlyadapted tobe used in electric signs 'which is neat, compact, strong,'simple,econominal to manufacture, and adapted to be easily `and firml securedin position and easily removed, it desired.

A desirable form of my receptacle'is shown in the drawings herewith, inwhich the refer` ence-numerals of the specification 'indicate the corresending parts 1n all the figures.

Figure is a vertical section. lli f. II isa top plan. Fig. Ill is a rearplan. liig. IV is a section of the top or rear ortion of the re ceptacleat a right an Vfle to lllig. I.

in the iigures, 1 in( icatcs the body or base, of porcelain or othersuitable insulating ma terial, preferably circular and having a socketon its lower falsa so-called, )referably surrounded by a short annular iange 2, within. which is arranged thel central-lampterminal 3 and Vtheouter-lamp terminal 4 in the forni of an outwardly-extending threadedshell, preferably of brass or copper. On the upper or rear surface ofthe base are the recessesone straight, 5, and the other curved or mar'-ginal, -by which the wire-terminals 7 and 8, correspondingly formed, arepositively separater and maintained securely in position. An integralmargin 9 surrounds said recesses containing the wireterminals,preferably having its outer edge beveled and formed with o positenotches 10for the out- (fing ends of the wiretcrminals and with holes toreceive the tips of the binding-screws 1 1. The spacewithin the marginImay be filled with insulating-cement 12. The central-lamp terminal maybe in the form of a split washer secured in place by screw 13, whichalso secures in place the straight terminal 7 and makes connectiontherewith. The threaded shell is secured by securing-screws 14, one orboth of which may engage with curved-wire terminal 8 to make othersskilled in th art tomon to receptacles for l connection therewith andsecure thatlalso on the brace.` 15 is a washer which maybe set" a ainstthe flange of lamp-tenninal4 `To t is threaded shell is fitted athreaded ring 16, of porcelain or other insulating' material, y

and preferably of similar diameter" to the base, which may have aknurled outer edge, rendering manipulation easier, and an innerYannularrabbet 17 to receive'theu flange 2 when the su porting-board or.faceplate is very thin. here shown, the 'facefplate 18 is supposed to beof rather thin sheet metal, and the receptacle is quickly and firmlysecured thereon by the ring, so that only the si htly ring is seen'onthefront ofthe sign. The holes in the face-plate maybe about largeenough to receive the flange on the use.

VIt will be seen that 'the clamped to the sup being held'against ting-surface formed base-section 1 outside of the' flange 2 Vby the frontsection or ring 16. The flange 2 is in terposed between the metal socket4: and the supporting-body, which will ordinarily be of metal. 'lhesetwo metallic bodies are therefore effectively insulated. The rabbet 17in the front section or rin r 16 permits the use of supporting bodies orp ates of various thickness. The flange 2 extends into the rab'het andmakes a complete insulation. yThe use of the external threadin on thesocket comon the back section ,orl

purpose of clamping the two sections together and securing thereceptacle to the support ing-body has the great advantage o sini-lphcity and economy of construction.

Having thus described my invention, what claim as new, and desire tosecure by Letters Patent, is-

1. In a receptacle for electricsigns, the combinationV with a circularporcelain base of a substantially uniform diameter and having a circularmargin on its back, a curved marinal recess and a straight' centralrecess ormed within said margin, and a socket or recess on its face, anda central-wire terminal fitted to the respective recesses and havingtips extendin outwardl and oppositely in notches in sai margin,guiding-screws 1n said tips having their ends received in holes in theporcelain lamp-terminalsl arranged on the face of the body, a screwconnecting the central-lamp terminal to the central-wire terminal and-sea marginal-wire terminal ITO ' su porting-body,

- ing against one an externally curing said central terminal inposition, screw connecting the outer or marginal-lamp terminal to-tliemarginalvire terminal and securing said terminals in iositiom and meansto secure the recepta e on a signplate.

2. A relatively thin supporting-body having a perforation in combinationwith alanipreceptaclecomprising a back section of insulating materiallying against one side of the an externally and internal screw-threadedsocket secured tothe hac sectionso as toextend through the perforationin the supporting-bod f, and a front sectionoi Vinsulating materialliaving-an internal thread so as to screw onto the endof the socket andagainst such supportin 3. A relatively thin supporting-ho y having aperforation, in combination with a lampreceptacle comprising a backsection of insulating material having a iiat bearing part lyside of thesupporting-body, and internally screw-threaded socket secured to theback section so as to extend through the perforation in thesuporting-bod and Va'iron't section of insulatv` ing materia having aninternal thread lso as to screw onto the end. of the socket and againstthe ortionof the supportingebody in contact with the viiatbearing-surface of the' back section.

4. A relatively thin supporting-body having a perforation, incombination with a lampreceptacle comprising a hack section ofinsulating material lying against one side oi the su porting-body, anexternally and interna ly screw-threaded socket securedto the backsection so as to extend through the pera ioration in such su -body.

esame l porting-body, a'lange on ket the back section ying between the,soc and the material of the su and a iront section of insu atingmaterial having an internal thread so as to screw onto the end oi thesocket and against such sup- -porting-body.

5. A relatively thin supporting-bodyhaving a perforation, in combinationwith alampreceptacle comprising a back section ofinsulating'materiallying against one side of the su porting-body, anexternally and interna l screw-threaded socket secured to the bac rsection so asto extend through the perforation in such supporting-bod aange on the back section lying betweent e socket and the material of thesupporting-body, a front .40 porting-body',

section of insulating material having an inj ternal thread so as-toscrew onto the end of the socket and against such supporting-body, and arahbet' on the front section to receive the flange on the hack section.

6. In a receptacle for incandescent lam s, the combination of a hase ofporcelain, wit a circular socket formin one lamp-terminal on the frontside of said ase, a lamp-terminal arranged centrally in said socket, apair of terminals for the circuitywires lying in channels iormed in theback of said porcelain base, and connections between said terminals andthe lamp-.terminals in the front side of the base. Y,

In testimony whereof I affixmy signature in presence of two witnesses.

A. W. LOSER, VERNON C. THoiviPsoN.

